Method and apparatus for controlling a deactivation timer of at least one secondary cell in a wireless communication system

Abstract

A method and an apparatus for controlling a deactivation timer of at least one secondary cell (SCell) in a wireless communication system are provided. The method for controlling the deactivation timer of the at least one SCell of a user equipment includes receiving a control indication through a physical downlink control channel (PDCCH) from a network node, wherein the control indication indicates a control of the deactivation timer of the at least one SCell, and controlling the deactivation timer of the at least one SCell according to the control indication.

1 . A user equipment for controlling a deactivation timer of at least one secondary cell (SCell) in a wireless communication system, comprising:
 a memory;   a transceiver; and   a processor coupled to the memory and the transceiver,   wherein the processor is configured to:
 control the transceiver to receive a control indication through a physical downlink control channel (PDCCH) from a network node, wherein the control indication indicates control of the deactivation timer of the at least one SCell; and 
 control the deactivation timer of the at least one SCell according to the control indication. 
   
     
     
         2 . The user equipment of  claim 1 , wherein the PDCCH carries downlink control information (DCI) comprising the control indication, the processor is configured to control the deactivation timer of the at least one SCell according to the DCI. 
     
     
         3 . The user equipment of  claim 1 , wherein the control indication comprises an activation indication and/or a deactivation indication. 
     
     
         4 . The user equipment of  claim 3 , wherein the transceiver is configured to receive information indicating a configuration of the at least one SCell from the network node, and the processor is configured to identify an activated SCell and/or a serving cell according to the information indicating the configuration of the at least one SCell from the network node. 
     
     
         5 . (canceled) 
     
     
         6 . The user equipment of  claim 3 , wherein the transceiver is configured to receive the activation indication through the PDCCH on an activated SCell from the network node, the activation indication indicates an activation for the deactivation timer of the at least one SCell, the processor is configured to restart the deactivation timer of the at least one SCell according to the activation indication, and the processor is configured to identify an activated SCell and/or a serving cell according to the information indicating the configuration of the at least one SCell from the network node. 
     
     
         7 . (canceled) 
     
     
         8 . The user equipment of  claim 3 , wherein the transceiver is configured to receive the activation indication through the PDCCH on a serving cell from the network node, the activation indication indicates an activation for the deactivation timer of the at least one SCell, the processor is configured to start or restart the deactivation timer of the at least one SCell according to the activation indication, and the processor is configured to start or restart the deactivation timer of the at least one SCell according to the DCI comprising the activation indication. 
     
     
         9 . (canceled) 
     
     
         10 . The user equipment of  claim 3 , wherein the transceiver is configured to receive the deactivation indication through the PDCCH on an activated SCell from the network node, the deactivation indication indicates a deactivation for the deactivation timer of the at least one SCell, the processor is configured to stop the deactivation timer of the at least one SCell according to the deactivation indication, and the processor is configured to stop the deactivation timer of the at least one SCell according to the DCI comprising the deactivation indication. 
     
     
         11 . (canceled) 
     
     
         12 . The user equipment of  claim 3 , wherein the transceiver is configured to receive the deactivation indication through the PDCCH on a serving cell from the network node, the deactivation indication indicates a deactivation for the deactivation timer of the at least one SCell, the processor is configured to stop the deactivation timer of the at least one SCell according to the activation indication, and the processor is configured to stop the deactivation timer of the at least one SCell according to the DCI comprising the activation indication. 
     
     
         13 . (canceled) 
     
     
         14 . A method for controlling a deactivation timer of at least one secondary cell (SCell) of a user equipment, comprising:
 receiving a control indication through a physical downlink control channel (PDCCH) from a network node, wherein the control indication indicates control of the deactivation timer of the at least one SCell; and   controlling the deactivation timer of the at least one SCell according to the control indication.   
     
     
         15 . The method of  claim 14 , wherein the PDCCH carries downlink control information (DCI) comprising the control indication, the method comprises controlling the deactivation timer of the at least one SCell according to the DCI. 
     
     
         16 . The method of  claim 14 , wherein the control indication comprises an activation indication and/or a deactivation indication, and the method further comprises receiving information indicating a configuration of the at least one SCell from the network node. 
     
     
         17 . (canceled) 
     
     
         18 . The method of  claim 17 , further comprising identifying an activated SCell and/or a serving cell according to the information indicating the configuration of the at least one SCell from the network node. 
     
     
         19 . The method of  claim 16 , further comprising receiving the activation indication through the PDCCH on an activated SCell from the network node, the activation indication indicating an activation for the deactivation timer of the at least one SCell, and restarting the deactivation timer of the at least one SCell according to the activation indication, wherein the method further comprises restarting the deactivation timer of the at least one SCell according to the DCI comprising the activation indication. 
     
     
         20 . (canceled) 
     
     
         21 . The method of  claim 16 , further comprising receiving the activation indication through the PDCCH on a serving cell from the network node, the activation indication indicating an activation for the deactivation timer of the at least one SCell, and starting or restarting the deactivation timer of the at least one SCell according to the activation indication, and further comprising: starting or restarting the deactivation timer of the at least one SCell according to the DCI comprising the activation indication. 
     
     
         22 . (canceled) 
     
     
         23 . The method of  claim 16 , further comprising receiving the deactivation indication through the PDCCH on an activated SCell from the network node, the deactivation indication indicating a deactivation for the deactivation timer of the at least one SCell, and stopping the deactivation timer of the at least one SCell according to the deactivation indication, and further comprising: stopping the deactivation timer of the at least one SCell according to the DCI comprising the deactivation indication. 
     
     
         24 . (canceled) 
     
     
         25 . The method of  claim 16 , further comprising receiving the deactivation indication through the PDCCH on a serving cell from the network node, the deactivation indication indicating a deactivation for the deactivation timer of the at least one SCell, and stopping the deactivation timer of the at least one SCell according to the activation indication, and further comprising stopping the deactivation timer of the at least one SCell according to the DCI comprising the activation indicatio. 
     
     
         26 . (canceled) 
     
     
         27 . A network node for controlling a deactivation timer of at least one secondary cell (SCell) in a wireless communication system, comprising:
 a memory;   a transceiver; and   a processor coupled to the memory and the transceiver,   wherein the processor is configured to:
 control the transceiver to notify, to a user equipment, a control indication through a physical downlink control channel (PDCCH), wherein the control indication indicates control of the deactivation timer of the at least one SCell; and 
 control the deactivation timer of the at least one SCell according to the control indication. 
   
     
     
         28 . The network node of  claim 27 , wherein the PDCCH carries downlink control information (DCI) comprising the control indication, the processor is configured to control the deactivation timer of the at least one SCell according to the DCI. 
     
     
         29 . The network node of  claim 27 , wherein the control indication comprises an activation indication and/or a deactivation indication, and the transceiver is configured to notify, to the user equipment, information indicating a configuration of the at least one SCell. 
     
     
         30 . (canceled) 
     
     
         31 . The network node of  claim 30 , wherein the processor is configured to identify an activated SCell and/or a serving cell according to the information indicating the configuration of the at least one SCell. 
     
     
         32 - 55 . (canceled)